The team learns to use a map as a mathematical tool when Hacker kidnaps Dr. Marbles.
The kids must master the properties of symmetry to stop Hacker from destroying all of cyberspace.
Hacker turns the Emperor into frozen a statue and the team must brave a snowstorm to save him.
The kids use algebraic equations to beat Hacker at a contest on cyber-wide television.
Hacker traps Digit and the kids in a mini-galaxy of orbs containing eerie creatures called Creepers.
Jules and the kids fall into an underground arena where they must play a game against three ghosts.
The team is transported to a Wild West site to prove that Hacker has taken a large piece of land.